:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-strong: #ebf2ff;
  --text: #111111;
  --muted: #5f6673;
  --line: rgba(17, 17, 17, 0.12);
  --line-strong: rgba(17, 17, 17, 0.24);
  --primary: #0f62fe;
  --primary-deep: #083eaa;
  --success: #11895b;
  --warn: #d97706;
  --danger: #c62828;
  --shadow-soft: 0 30px 80px rgba(17, 17, 17, 0.08);
  --max-width: 1240px;
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 40px;
  --transition: 240ms cubic-bezier(.2,.65,.2,1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

img {
  display: block;
  width: 100%;
}

.page-shell {
  overflow: hidden;
}

.section {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
  padding: 88px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
  padding: 20px 0;
  backdrop-filter: blur(18px);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 8px -12px;
  background: rgba(244, 246, 248, 0.86);
  border: 1px solid rgba(17, 17, 17, 0.06);
  border-radius: 999px;
  z-index: -1;
}

.brand {
  font-weight: 800;
  letter-spacing: -0.04em;
}

.site-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(15, 98, 254, 0.08);
  color: var(--text);
  transform: translateY(-2px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 36px;
  align-items: end;
  padding-top: 36px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary-deep);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-copy h1,
.section h2 {
  margin: 0;
  letter-spacing: -0.05em;
}

.hero-copy h1 {
  font-size: clamp(2.7rem, 7vw, 5.8rem);
  line-height: 0.94;
  max-width: 10ch;
}

.hero-body {
  max-width: 38rem;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions,
.cta-actions,
.form-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  border: 0;
  border-radius: 999px;
  padding: 15px 22px;
  transition: transform var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button:focus-visible,
.tab-button:focus-visible,
.assumption-toggle:focus-visible,
.platform-option:focus-within,
.toggle-item:focus-within {
  outline: 2px solid rgba(15, 98, 254, 0.7);
  outline-offset: 3px;
}

.button.primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 14px 30px rgba(15, 98, 254, 0.22);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: var(--primary-deep);
}

.button.secondary,
.button.ghost {
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  border: 1px solid rgba(17, 17, 17, 0.1);
}

.hero-signals {
  list-style: none;
  padding: 0;
  margin: 36px 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.hero-signals li,
.insight-panel,
.metric-panel,
.assumptions-box,
.table-card,
.visual-card,
.score-item,
.scenario-card,
.platform-option,
.toggle-item,
.site-header::before {
  box-shadow: var(--shadow-soft);
}

.hero-signals li {
  padding: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(17, 17, 17, 0.05);
  border-radius: 20px 20px 4px 20px;
}

.hero-signals strong,
.metric-value {
  display: block;
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.hero-signals span,
.panel-label,
.form-feedback,
.metric-note,
.table-card p,
.visual-card p,
.score-text p,
.scenario-card p,
.assumption-content,
label span {
  color: var(--muted);
}

.hero-visual {
  position: relative;
  min-height: 620px;
}

.hero-card {
  position: absolute;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid rgba(17, 17, 17, 0.07);
}

.hero-card-main {
  inset: 20px 28px 84px 0;
  border-radius: 42px 18px 42px 18px;
}

.hero-card-side {
  right: 0;
  bottom: 0;
  width: min(72%, 360px);
  border-radius: 28px 28px 28px 6px;
}

.hero-card img {
  height: 100%;
  object-fit: cover;
}

.hero-card-main img {
  min-height: 100%;
}

.hero-card-side img {
  height: 240px;
}

.hero-card-text {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  border-radius: 24px 24px 8px 24px;
}

.hero-card-text.compact {
  position: static;
  padding: 18px;
  background: var(--surface);
  border-radius: 0;
}

.hero-card-text p,
.section-lead p,
.panel-label,
.score-label {
  margin: 0 0 10px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary-deep);
}

.hero-card-text h2,
.section h2,
.result-summary h3,
.table-card h3,
.visual-card h3,
.scenario-card h3 {
  margin: 0;
  font-size: clamp(1.3rem, 2vw, 2rem);
  letter-spacing: -0.04em;
}

.floating-card {
  animation: drift 7s ease-in-out infinite;
}

.delay-1 {
  animation-delay: 1s;
}

@keyframes drift {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
  50% { transform: translate3d(0, -14px, 0) rotate(-0.4deg); }
}

.signals-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 32px;
  align-items: start;
}

.signal-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 18px;
}

.signal-list article {
  padding: 24px;
  min-height: 210px;
  background: rgba(255,255,255,0.94);
  border: 1px solid rgba(17, 17, 17, 0.08);
  border-radius: 26px 8px 26px 8px;
  transform: translateY(0);
  transition: transform var(--transition), border-color var(--transition);
}

.signal-list article:hover {
  transform: translateY(-4px);
  border-color: rgba(15, 98, 254, 0.28);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 32px;
  align-items: start;
}

.workspace-form,
.insight-panel,
.result-summary,
.result-metrics,
.assumptions-box,
.table-card,
.visual-card,
.score-item,
.scenario-card {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(17, 17, 17, 0.08);
}

.workspace-form {
  padding: 28px;
  border-radius: 34px 10px 34px 10px;
}

.insight-panel {
  margin-top: 28px;
  padding: 20px;
  border-radius: 22px 22px 6px 22px;
}

.insight-panel span,
.assumption-content li,
.reason-list li {
  display: block;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  border: 0;
}

.platform-grid legend {
  font-weight: 700;
  margin-bottom: 14px;
}

.platform-option,
.toggle-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: 18px 6px 18px 18px;
  border: 1px solid rgba(17, 17, 17, 0.08);
  transition: border-color var(--transition), transform var(--transition), background var(--transition);
}

.platform-option input,
.toggle-item input {
  inline-size: 18px;
  block-size: 18px;
  accent-color: var(--primary);
}

.platform-option.active,
.toggle-item.active {
  background: rgba(15, 98, 254, 0.08);
  border-color: rgba(15, 98, 254, 0.22);
}

.platform-option:hover,
.toggle-item:hover {
  transform: translateY(-2px);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

label {
  display: grid;
  gap: 8px;
}

input,
select {
  min-height: 52px;
  padding: 12px 14px;
  border-radius: 16px 6px 16px 16px;
  border: 1px solid rgba(17, 17, 17, 0.12);
  background: rgba(255, 255, 255, 0.95);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

input:focus,
select:focus {
  outline: none;
  border-color: rgba(15, 98, 254, 0.6);
  box-shadow: 0 0 0 4px rgba(15, 98, 254, 0.12);
  transform: translateY(-1px);
}

.toggle-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.form-feedback {
  min-height: 24px;
  margin: 16px 0 0;
}

.result-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.asym-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 18px;
  margin-top: 26px;
}

.metric-panel {
  padding: 30px;
}

.result-summary {
  border-radius: 34px 10px 34px 10px;
}

.result-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  border-radius: 10px 34px 10px 34px;
}

.reason-list,
.assumption-content ul {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.reason-list li,
.assumption-content li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
}

.reason-list li::before,
.assumption-content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--primary);
}

.assumptions-box {
  margin-top: 18px;
  padding: 0;
  border-radius: 24px 24px 8px 24px;
}

.assumption-toggle {
  width: 100%;
  background: transparent;
  border: 0;
  padding: 20px 24px;
  text-align: left;
  font-weight: 700;
}

.assumption-content {
  padding: 0 24px 20px;
}

.tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.tab-button {
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid rgba(17, 17, 17, 0.1);
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  transition: all var(--transition);
}

.tab-button.active {
  background: var(--text);
  color: #ffffff;
}

.tab-panels {
  margin-top: 18px;
}

.tab-panel {
  animation: fadeUp 360ms ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 18px;
}

.table-card,
.visual-card,
.score-item,
.scenario-card {
  padding: 26px;
}

.table-card {
  border-radius: 34px 10px 34px 10px;
}

.visual-card,
.image-card {
  display: grid;
  gap: 18px;
  align-content: start;
  border-radius: 10px 34px 10px 34px;
}

.image-card img {
  min-height: 320px;
  border-radius: 24px 8px 24px 8px;
  object-fit: cover;
}

.table-card table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.table-card th,
.table-card td {
  padding: 14px 0;
  border-bottom: 1px solid rgba(17, 17, 17, 0.08);
  text-align: left;
}

.table-card th:last-child,
.table-card td:last-child,
.numeric {
  text-align: right;
}

.table-card tbody tr {
  transition: transform var(--transition), color var(--transition);
}

.table-card tbody tr:hover {
  transform: translateX(6px);
}

.score-list {
  display: grid;
  gap: 16px;
}

.score-item {
  display: grid;
  grid-template-columns: minmax(0, 180px) minmax(0, 1fr) 80px;
  gap: 18px;
  align-items: center;
  border-radius: 24px 8px 24px 8px;
}

.bar-track {
  height: 18px;
  background: rgba(17, 17, 17, 0.08);
  border-radius: 999px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
  transform-origin: left center;
  animation: growBar 900ms cubic-bezier(.2,.65,.2,1);
}

@keyframes growBar {
  from { transform: scaleX(0.2); opacity: 0.5; }
  to { transform: scaleX(1); opacity: 1; }
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.scenario-card {
  border-radius: 30px 10px 30px 10px;
  min-height: 290px;
}

.scenario-card.highlight {
  background: rgba(15, 98, 254, 0.08);
  border-color: rgba(15, 98, 254, 0.25);
}

.scenario-badge {
  display: inline-flex;
  padding: 8px 12px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: rgba(17, 17, 17, 0.08);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
}

.cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  padding-bottom: 120px;
}

.cta-band .cta-copy h2 {
  max-width: 14ch;
}

.reveal {
  opacity: 1;
  transform: none;
}

html.js .reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 700ms ease, transform 700ms ease;
}

html.js .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.offset-top {
  transform: translateY(-12px);
}

.offset-right {
  transform: translateX(16px);
}

.offset-left {
  transform: translateX(-10px);
}

.offset-bottom {
  transform: translateY(10px);
}

.status-good {
  color: var(--success);
}

.status-warn {
  color: var(--warn);
}

.status-bad {
  color: var(--danger);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1080px) {
  .hero,
  .signals-grid,
  .workspace,
  .asym-grid,
  .panel-grid,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .hero-copy h1,
  .cta-band .cta-copy h2 {
    max-width: none;
  }

  .hero-visual {
    min-height: 520px;
  }

  .signal-list,
  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .result-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .section {
    width: min(calc(100% - 28px), var(--max-width));
    padding: 72px 0;
  }

  .site-header {
    width: min(calc(100% - 28px), var(--max-width));
    flex-direction: column;
    gap: 12px;
  }

  .hero-actions,
  .cta-actions,
  .form-actions,
  .toggle-row {
    flex-direction: column;
  }

  .button {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .hero-signals,
  .platform-grid,
  .form-grid,
  .result-metrics,
  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 440px;
  }

  .hero-card-main {
    inset: 0 0 94px 0;
  }

  .hero-card-side {
    width: 82%;
  }

  .score-item {
    grid-template-columns: 1fr;
  }

  .table-card {
    overflow-x: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}